JPH0216650Y2 - - Google Patents

Abstract

A bottom-end-stop assembly for a slide fastener comprises a pair of intercoupling male and female members (1), (2) of thermoplastic synthetic resin adapted to be molded on adjacent bottom ends of opposed fastener stringers (19), (20). The male member (1) has an inner longitudinal projection (5) and a pivot pin (6). The female member (2) has an inner longitudinal groove (8) receptive of the projection (5), and an inwardly opening support hole (10) receptive of the pivot pin (6) for pivotal movement of the male member (1). The male member (1) has at least one aperture (4) in the projection (5) so that the stringer tape (19) is clamped between a pair of mold members (22), (23) so as not to become wavy during the molding. The male member (1) also has on opposite surfaces a pair of reinforcing ridges (7), (7) remote from the inner longitudinal side of the male member (1).

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a releasable fitting for a slide fastener.

BACKGROUND TECHNOLOGY In a side-fitting releasable insert that is composed of an engaging body and a locking body, and is fitted from the side of the engaging body and the locking body, for example, the Japanese Utility Model Publication No. 59 shown in FIG.
Like the one in Publication No. 25227, a pivot pin C is provided at the lower end of the connecting piece A, a fitting part E with a support hole D is provided on the other locking piece B, and the pivot pin C is inserted into the support hole D.
At the same time, the upper side of the connecting piece A is inserted from the side into the groove G provided on the side surface of the locking piece B, so that the connecting piece A and the locking piece B are fitted together. What was known was.

Problems to be Solved by the Invention Some of the above-mentioned side-in type releasable fittings are integrally attached to the lower ends of the left and right fastener stringers by injection molding synthetic resin material, but the injection molding The cavity into which the synthetic resin material is injected is an empty space, so when the fastener tape is sandwiched between a pair of molds, the fastener tape is not pressed down inside the cavity and often becomes wavy, resulting in thin sections. The fastener tape may be exposed irregularly on the surface obtained by injection molding the lateral fitting part of the joint, which impairs the appearance and causes a decrease in bending strength. was. Therefore, in order to prevent this, if the lateral fitting part of the joint body is made thicker, the space between the upper and lower outer rails of the slider becomes larger, and the rising dimension of the outer rails decreases accordingly, guiding the fitting teeth. The problem was that the required height could not be secured, and chain cracking would occur due to incomplete meshing of the interlocking teeth.

Therefore, the object of the present invention is to solve the above-mentioned problems and provide a releasable insert that has a good appearance and has increased bending strength without affecting the meshing of the interlocking teeth. .

Means for Solving the Problems In order to achieve the above object, the present invention provides the engaging body 1 formed by injection molding of a synthetic resin material at the lower end of one fastener stringer 19, and the lower end of the other fastener stringer 20. In the side-in type separable fitting insert, a locking body 2 similarly formed by injection molding of a synthetic resin material is provided, and the engaging body 1 is separated and connected from the side of the locking body 2. A window hole 4 is formed in the lateral fitting part 5 of the combination 1 so that the tape 21 is pressed by a mold during injection molding, and a reinforcing wall is formed on the side of the window hole 4 on the non-fitting side. A portion 7 is provided.

Example Examples of the present invention will be described below.

FIG. 1 shows the fitted state of the lower end of the slide fastener to which the releasable fitting of the present invention is attached. The separable fitting consists of an engaging body 1 and a locking body 2, and left and right fastener stringers 19,
20 is integrally attached to the lower end by injection molding a synthetic resin material.

The engaging body 1 is provided with a pivot pin 6 at its lower end, and a fastening tooth receiving portion 3 at its upper end that meshes with the first fastening tooth 16 at the lowest end of the fastening tooth row of the right fastener stringer. A thin side-fitting part 5 is formed to fit into a groove 8 provided on the side surface of the locking body 2. As shown in FIGS. 3 and 4, this lateral fitting part 5 has a vertically long window hole 4 formed in the core part 15 to which the fastener is attached and in the vicinity of the core part 15 where the fastener tape 21 is located. There is. This window hole 4 is formed when injection molding is performed by sandwiching the fastener tape 21 between an upper mold 22 and a lower mold 23 as shown in FIG.
The core part 15 and the fastener tape 21 in the vicinity thereof are pressed and clamped at predetermined positions from above and below by a mold, so that the fastener tape 21 and the core part 15 are prevented from waving.
Although the drawings show an example of one vertically long window hole, a plurality of window holes corresponding to the window hole may be provided at the same position. A reinforcing thick part 7 extending from the support portion of the pivot pin 6 to the upper end of the engaging body 1 is provided along the window hole 4 on the side opposite to the fitting side. The structure is designed not only to eliminate the decrease in bending strength in the longitudinal direction, but also to strengthen it, and to prevent adherents from getting caught in the outer rail 18 of the slider, as shown in the cross-sectional view of FIG. has been done. Further, a thin reinforcing wing portion 13 is provided outside the thick reinforcing portion 7, and this reinforcing wing portion 13 is also provided with several window holes 14.

The locking body 2, which is provided opposite to the engaging body 1, has a fitting portion 9 at its lower end that is provided with a support hole 10 that fits into the pivot pin 6 provided on the engaging body 1. The upper end surface of the stop portion 9 constitutes a slider receiving portion 11 of a slider 17 that is pulled down to separate the separable fitting stopper. Further, a groove 8 is formed in the upper side surface of the fitting part 9, into which the lateral fitting part 5 of the engaging body is fitted from the side. In the locking body 2, if a hollowed-out recess is provided on the outer surface of the rod-shaped portion forming the groove 8, and a thin wall portion is formed in the hollowed-out recessed portion, the core portion 15 and its A window hole 12 is bored at a position near the fastener tape 21. Also, symmetrically to the reinforcing blade portion 13 of the engaging body 1, several window holes 14 are formed outwardly.
A reinforcing wing portion 13 is provided.

FIG. 3 shows that the slider 17 has been pulled down and the diamond is connected to the engagement tooth receiver 3 at the upper end of the engaging body and the first
This figure shows a state in which the engagement body 1 is disengaged from the engagement tooth 16 and rotated counterclockwise around the pivot pin 6 at the lower end.Then, the engagement body 1 is moved laterally and the It is completely separated from the locking body 2 in the state shown in Figure 4. When fitting the engaging body 1 to the locking body 2, contrary to the separation operation, fit the pivot pin 6 of the engaging body into the support hole 10 of the locking body, rotate it clockwise, and insert it sideways. The fitting part 5 is inserted into the tape sliding groove 24 of the slider 17.
By horizontally fitting into the concave groove 8 of the locking body and pulling up the slider 17, the separable fitting ends will be in the state shown in FIG. 1, and the separable fitting ends will maintain the mutually fitted state. Note that the window hole provided in the locking body 2 may be divided into a plurality of windows instead of one vertically long window hole, similar to the window hole 4 of the engaging body 1. Furthermore, the portion of the locking body 2 that constitutes the concave groove 8 into which the lateral fitting portion 5 of the engaging body is fitted is thick and covers most of the core portion 15 and the fastener tape 21 in the vicinity thereof. Therefore, the window hole 12 of the locking body 2 is not necessarily necessary, but it is symmetrical with the window hole 4 of the engagement body 1, so that the tape does not become wavy and exposed irregularly, leading to a decrease in bending strength. It is also possible to create a structure that is desirable from a design point of view.

The present invention is similar to the side-in type separable fitting insert that is fitted using a pivot pin and a support hole.
The present invention can also be applied to a side-entry type separable fitting insert that uses a hook portion and a hook engaging portion to fit an engaging body and a locking body from the side.

Effects of the invention The present invention has an open window hole in the side-fitting part of the engaging body so that the tape is pressed by the mold during injection molding, so that the wall thickness of the side-fitting part is not increased. It is possible to eliminate the wavy state of the fastener tape in the core part and its vicinity during injection molding, and prevent the core part and the fastener tape in its vicinity from being irregularly exposed on the surface of the molded product, resulting in a good-looking opening. A detachable fitting is obtained, and a thick reinforcing part is provided on the non-fitting side of the window hole, so that it reinforces the decrease in bending strength due to the drilling of the window hole, and also reduces the length of the engaging body. This strengthens the bending strength in this direction, and the thick reinforcing part is provided along the path of the slider, preventing adherents from getting caught between the outer rail of the slider and the engaging body. It has excellent effects such as:

[Brief explanation of drawings]

Fig. 1 is a front view of the lower end of the slide fastener with the separable fitting of the present invention attached, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 is a half view of the separable fitting of the present invention. FIG. 4 is a front view of the separated state, FIG. 4 is a perspective view of the same completely separated state, and FIG.
FIG. 6 is a cross-sectional view of the wire tape, and is a perspective view of a known side-entry separable insert. 1... Engaging body, 2... Locking body, 4, 12, 14
... Window hole, 5 ... Side fitting part, 7 ... Thick reinforcement part, 13 ... Reinforcement wing part, 15 ... Core part, 17
...Slider, 18...Outer rail, 21...
Fastener tape.

Claims (1)

[Scope of utility model registration request] At the lower end of one fastener stringer 19,
An engaging body 1 formed by injection molding of a synthetic resin material is provided, and a locking body 2 also formed by injection molding of a synthetic resin material is provided at the lower end of the other fastener stringer 20. In the side-fitting releasable fitting device which is separated and joined from the side, a window is opened in the side-fitting part 5 of the engaging body 1 so as to press the tape 21 with a mold during injection molding. A separable fitting insert for a slide fastener, characterized in that a hole 4 is formed and a reinforcing thick part 7 is provided on the non-fitting side of the window hole 4.